A Florida man's quest to find hundreds of U.S. Marines buried anonymously after one of World War II's bloodiest battles could lead to the largest identification of American war dead in history.
Researchers have found 139 graves thanks to ground-penetrating radar, thousands of tediously reviewed military documents and hundreds of interviews. They believe those graves hold the remains of men who died 65 years ago out in the Pacific Ocean on Tarawa Atoll.
The Pentagon says they'll need convincing evidence before they start to excavate there.
More than 990 U.S. marines and 680 sailors died and almost 2,300 were wounded in the three-day battle, one of the first major amphibious assaults in the Pacific.